US138758A - Improvement in the manufacture of door-knobs - Google Patents
Improvement in the manufacture of door-knobs Download PDFInfo
- Publication number
- US138758A US138758A US138758DA US138758A US 138758 A US138758 A US 138758A US 138758D A US138758D A US 138758DA US 138758 A US138758 A US 138758A
- Authority
- US
- United States
- Prior art keywords
- knobs
- door
- manufacture
- improvement
- knob
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000004519 manufacturing process Methods 0.000 title description 6
- 239000002184 metal Substances 0.000 description 12
- 238000005266 casting Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K23/00—Making other articles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/12—Push-buttons
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49599—Knob or knob shank making
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T292/00—Closure fasteners
- Y10T292/82—Knobs
Definitions
- Figure 1 is a face view of the spindle portion of knob.
- Fig. 2 is a latitudinal section of knob. I
- the shell I cast of metal, either with or without an outer casing, ornamented as shown in'p'atent of Christian Rebstock and Joseph Ottner, of February 14, 1873, in an ordinary sand-mold. I then turn a rabbet, as shown at b, to keep the two portions of knob in proper position for uniting. I also turn in the grooves 2 2, by which the parts are held together by the ring C. I then set the shell in a sand or metal mold in which the contour of the ringC has been prepared in addition to that of the knob, and then pour molten metal around them, which unites the parts firmly together. I then finish the ring in a lathe,
Description
1. OTTN ER.
Manufacture of Door-Knobs.
INVENTOR WITNESSES Patented May 13, 1873.
UNITED STATES PATENT -OFFIGE.
JOSEPH OTTNER, OF BRIDGEPORT, CONNECTICUT.
IMPROVEMENT IN THE MANUFACTURE OF DOOR-KNOBS.
Specification forming part of Letters Patent No. 138,758, dated May 13, 1873; application filed April 7, 1873.
consists in casting the shell for knob in two parts, in an ordinary sandmbld, and in uniting-them with a ring of metal cast around their circumference, the object being to dispense with a core, and to facilitate their manu- I facture.
In the drawing, Figure 1 is a face view of the spindle portion of knob. Fig. 2 is a latitudinal section of knob. I
The shell I cast of metal, either with or without an outer casing, ornamented as shown in'p'atent of Christian Rebstock and Joseph Ottner, of February 14, 1873, in an ordinary sand-mold. I then turn a rabbet, as shown at b, to keep the two portions of knob in proper position for uniting. I also turn in the grooves 2 2, by which the parts are held together by the ring C. I then set the shell in a sand or metal mold in which the contour of the ringC has been prepared in addition to that of the knob, and then pour molten metal around them, which unites the parts firmly together. I then finish the ring in a lathe,
leaving the periphery smooth and true, and
avoid the imperfections of uniting the parts when faced with a thin metal shell whose edges have to be turned over each other, and are easily bent or torn around the periphery.
What I claim as new, and desire to secure by Letters Patent, is- I 1. The method of casting and preparing the shells for metallic knobs, as described and set forth.
2. The uniting of the shells of a metallic door-knob by a metal ring cast to the parts and finished, as described and set forth.
In testimony whereof I have signed my name to this specification before two subscribing witnesses.
JOSEPH OTTNER.
Witnesses:
A. SKAATS, Gno. Z. SKAATs.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US138758A true US138758A (en) | 1873-05-13 |
Family
ID=2208172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US138758D Expired - Lifetime US138758A (en) | Improvement in the manufacture of door-knobs |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US138758A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050108021A1 (en) * | 2003-07-31 | 2005-05-19 | Greg Anderson | System and method for routing and managing service requests |
-
0
- US US138758D patent/US138758A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050108021A1 (en) * | 2003-07-31 | 2005-05-19 | Greg Anderson | System and method for routing and managing service requests |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2387013A (en) | Making turncocks | |
| US138758A (en) | Improvement in the manufacture of door-knobs | |
| US2273190A (en) | Method of making molded knobs or balls | |
| US417176A (en) | Glass-mold | |
| US528147A (en) | Cromwell | |
| US2904A (en) | Improvement in the method of attaching door-knobs to their spindles | |
| JPH03267501A (en) | Movable scroll and manufacture thereof | |
| US22830A (en) | Himoffi | |
| US86811A (en) | James b | |
| US134931A (en) | Improvement in molds for casting metal knobs | |
| US232086A (en) | taylor | |
| KR102360895B1 (en) | Die casting mold for drive gear of spinning reel | |
| US58269A (en) | Improvement in the manufacture of knives and forks | |
| US1286035A (en) | Dial for combination-locks. | |
| USRE5444E (en) | Improvement in molds for casting knobs | |
| US139317A (en) | Improvement in hub-bands for the wheels of vehicles | |
| US129056A (en) | Improvement in molds for casting metal door-knobs | |
| US623674A (en) | Pin tumbler lock | |
| US130151A (en) | Improvement in casting chilled rolls | |
| US305558A (en) | Williston i | |
| US66496A (en) | Improvement in top pbop-nut foe carriages | |
| USRE2921E (en) | collins | |
| US102384A (en) | Improvement in patterns for casting | |
| US284926A (en) | Watch-case | |
| US371502A (en) | Henry hoffman |